virsight hearing - Motor Vehicle Hazard Archive Project

289
Dessiption of the Double Pairs
C,omparison Procedure
The merhod fdlls on too l)spels, a sDbirr" i)@pst and d
''othe.
@cupsnL The p.obablliti6 of a fatality to lhe subiect ltnp6rl
bder two cddirio$ for exmple, r€stEin€d and unrdtrarn€d-aE
ompared. The orher' o.tupant esntalll seNes a no.malizinS. o.
ex!.6ure estinali!8, role The pr€du.e us !*oscls of iaLal..ahet
Th. fi*t *r scists ol cr€h6 involvinS (aG contairi.nS a subjel du'
pu! of rnte.6r (such {s r.est.un€d nSht res penSer) and an
"oth€r"
d@pol (such s3 u unresrrained dnver), al iest on€ of whom
is kill€d F.on Lhe nmb€6 ol subje.t {d othe. @cupant rat3lio6. a
$bjecvothe. fatality ratlo is calcrl.€d (such d rhe 6t.dned nSht
red palsnger to Nestraned d.ive. fatlritv .atb). r'rcn a *cond *t
of crss}G involving cm where the subjer EcupMl dd the other ftcu-
Fur elrmsl.ained, uolJls latarrty .ato is.alolat d lslch 6 tfe
m.est.aired rl8h! Ed t4 umt.ained dnve. .atiol. DYrding the fiFr
f.talhy ratjo by the s@nd ).el(ls Lhe p.obabilitv $at a Eddned nght
E& p4enSer is lilled conpared with rhe corespondi4 probabiliit
lhai & un6rr*i.ed not rcaryer6en8e. L. killed This.atD rs the
efletivenes of the 6tr$nt systm defined 6 lhe feciion (or p€..en0
reduction in farabtie that woutd drue to a @re^tly unEt.aned
Dopulation if the population r€rc to chsge io miversal ar.ant u5€,
dl other I&ioF .enaini!8 unche8ed
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